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    • 22. 发明授权
    • Focused beam spectroscopic ellipsometry method and system
    • 聚焦光束椭偏仪的方法和系统
    • US5910842A
    • 1999-06-08
    • US753696
    • 1996-11-27
    • Timothy R. Piwonka-CorleXing ChenLloyd J. Lacomb, Jr.Jean-Louis StehleDorian Zahorski
    • Timothy R. Piwonka-CorleXing ChenLloyd J. Lacomb, Jr.Jean-Louis StehleDorian Zahorski
    • G01N21/21
    • G01N21/211G01N2021/213
    • A method and system for spectroscopic ellipsometry employing reflective optics to measure a small region of a sample by reflecting radiation (preferably broadband UV, visible, and near infrared radiation) from the region. The system preferably has an autofocus assembly and a processor programmed to determine from the measurements the thickness and/or complex refractive index of a thin film on the sample. Preferably, only reflective optics are employed along the optical path between the polarizer and analyzer, a sample beam reflects with low incidence angle from each component of the reflective optics, the beam is reflectively focused to a small, compact spot on the sample at a range of high incidence angles, and an incidence angle selection element is provided for selecting for measurement only radiation reflected from the sample at a single, selected angle (or narrow range of angles). The focusing mirror preferably has an elliptical shape to reduce off-axis aberrations in the focused beam. Some embodiments include both a spectrophotometer and an ellipsometer integrated together as a single instrument. In such instrument, the spectrophotometer and ellipsometer share a radiation source, and radiation from the source can be focused by either the spectrophotometer or the ellipsometer to the same focal point on a sample. Preferred embodiments of the ellipsometer employ a rotating, minimal-length Rochon prism as a polarizer, and include a spectrometer with an intensified photodiode array to measure reflected radiation from the sample, and a reference channel (in addition to a sample channel which detects radiation reflected from the sample).
    • 使用反射光学器件的光谱椭偏仪的方法和系统通过从该区域反射辐射(优选宽带UV,可见光和近红外辐射)来测量样品的小区域。 该系统优选地具有自动对焦组件和被编程用于根据测量结果确定样品上薄膜的厚度和/或复合折射率的处理器。 优选地,沿着偏振器和分析器之间的光路仅采用反射光学元件,样品光束以反射光学器件的每个分量以低入射角反射,光束被反射聚焦到样品上的小的紧密斑点 并且提供入射角选择元件用于仅选择仅以单个选定角度(或窄范围的角度)从样品反射的辐射。 聚焦镜优选具有椭圆形以减少聚焦光束中的离轴像差。 一些实施例包括作为单个仪器集成在一起的分光光度计和椭偏仪。 在这种仪器中,分光光度计和椭偏仪共享一个辐射源,来自源的辐射可以通过分光光度计或椭偏仪聚焦到样品上的同一焦点。 椭偏仪的优选实施例采用旋转的,最小长度的Rochon棱镜作为偏振器,并且包括具有增强的光电二极管阵列的光谱仪,以测量来自样品的反射辐射,以及参考通道(除了检测辐射的样品通道 从样品)。
    • 25. 发明授权
    • Compact, configurable power supply for energizing ozone-producing cells
    • 紧凑的可配置电源,用于激发臭氧发生电池
    • US09302912B2
    • 2016-04-05
    • US13432415
    • 2012-03-28
    • Ken TranFeng TianXing ChenFranklin Lee
    • Ken TranFeng TianXing ChenFranklin Lee
    • H05B37/00C01B13/11
    • H01J37/248C01B13/115C01B2201/90
    • Improvements in the supply of high-frequency electrical power to ozone-producing cells can be accomplished using the systems and techniques described herein. Application of a DC-DC converter operating at a switching frequency substantially greater than a load frequency, supports generation of a high-voltage AC for powering such cells, while allowing for reductions in component size and reductions in a quality factor of a load tuning circuit. Controllable power inverters used in obtaining one or more of the switching and load frequencies can be controlled using feedback techniques to provide stable, high-quality power to ozone-producing cells under variations in one or more of externally supplied power and load conditions. An inrush protection circuit can also be provided to selectively introduce a current-limiting resistance until an input DC bus has been sufficiently initialized as determined by measurements obtained from the DC bus. The current limiting resistance can be a positive-temperature coefficient thermistor.
    • 使用本文所述的系统和技术可以实现向产生臭氧的电池供应高频电力的改进。 以明显大于负载频率的开关频率工作的DC-DC转换器的应用支持产生用于为这样的单元供电的高压AC,同时允许减小组件尺寸并降低负载调整电路的品质因数 。 可以使用反馈技术来控制用于获得开关和负载频率中的一个或多个的可控功率逆变器,以在一个或多个外部供电和负载条件的变化下向产生臭氧的电池提供稳定的高质量功率。 还可以提供浪涌保护电路以选择性地引入限流电阻,直到输入DC总线已被充分初始化为由从DC总线获得的测量结果所确定。 限流电阻可以是正温系数热敏电阻。
    • 27. 发明授权
    • Method and system for shoot-through protection
    • 射击保护的方法和系统
    • US08749939B2
    • 2014-06-10
    • US13106920
    • 2011-05-13
    • Ken TranFeng TianXing Chen
    • Ken TranFeng TianXing Chen
    • H02H3/08H02M1/38H03K17/082H02M3/337
    • H03K17/0822H02M1/38H02M3/337H03K2217/0036
    • A switching apparatus includes a first transistor, a second transistor, a first circuit module, a first current sensor and a control circuit. The first transistor includes first, second and third terminals. The first terminal of the first transistor is coupled to a first power terminal. The third terminal of the first transistor includes a gate or base of the first transistor. The second transistor includes first, second and third terminals. The first terminal of the second transistor is coupled to a second power terminal. The second terminal of the second transistor is coupled to the second terminal of the first transistor. The third terminal of the second transistor includes a gate or base of the second transistor. The first circuit module includes an inductor in parallel with a diode. The first circuit module is connected between the first terminal of the second transistor and the second power terminal.
    • 开关装置包括第一晶体管,第二晶体管,第一电路模块,第一电流传感器和控制电路。 第一晶体管包括第一,第二和第三端子。 第一晶体管的第一端子耦合到第一电源端子。 第一晶体管的第三端子包括第一晶体管的栅极或基极。 第二晶体管包括第一,第二和第三端子。 第二晶体管的第一端耦合到第二电源端子。 第二晶体管的第二端子耦合到第一晶体管的第二端子。 第二晶体管的第三端子包括第二晶体管的栅极或基极。 第一电路模块包括与二极管并联的电感器。 第一电路模块连接在第二晶体管的第一端和第二电源端之间。
    • 28. 发明申请
    • Method and Apparatus for a Large Area Inductive Plasma Source
    • 大面积感应等离子体源的方法和装置
    • US20140062285A1
    • 2014-03-06
    • US13598148
    • 2012-08-29
    • Xing Chen
    • Xing Chen
    • H05H7/04H05H1/24
    • H05H7/04H01J37/321H01J37/3266H01J37/32669H05H1/24
    • A plasma source for providing dissociated gas to semiconductor process chamber is provided. The plasma chamber can have at least one gas inlet and at least one chamber wall for containing the gas, a plurality of magnetic cores disposed relative to the plasma chamber such that the plasma chamber passes through each of the plurality of magnetic cores. A primary winding can be coupled to the plurality of magnetic cores. The plasma chamber can generate a toroidal plasma along a plane extending through the plasma chamber and which is at least substantially parallel to a top surface of a sample holder disposed within the semiconductor process chamber.
    • 提供了一种用于向半导体处理室提供离解气体的等离子体源。 等离子体室可以具有至少一个气体入口和至少一个用于容纳气体的室壁,相对于等离子体室设置的多个磁芯,使得等离子体室通过多个磁芯中的每一个。 初级绕组可耦合到多个磁芯。 等离子体室可以沿着延伸穿过等离子体室的平面产生环形等离子体,并且其至少基本上平行于设置在半导体处理室内的样品保持器的顶表面。
    • 29. 发明申请
    • COMPACT, CONFIGURABLE POWER SUPPLY FOR ENERGIZING OZONE-PRODUCING CELLS
    • 紧凑的可配置电源,用于加强生产臭氧的电池
    • US20130257301A1
    • 2013-10-03
    • US13432415
    • 2012-03-28
    • Ken TranFeng TianXing ChenFranklin Lee
    • Ken TranFeng TianXing ChenFranklin Lee
    • H01J37/248
    • H01J37/248C01B13/115C01B2201/90
    • Improvements in the supply of high-frequency electrical power to ozone-producing cells can be accomplished using the systems and techniques described herein. Application of a DC-DC converter operating at a switching frequency substantially greater than a load frequency, supports generation of a high-voltage AC for powering such cells, while allowing for reductions in component size and reductions in a quality factor of a load tuning circuit. Controllable power inverters used in obtaining one or more of the switching and load frequencies can be controlled using feedback techniques to provide stable, high-quality power to ozone-producing cells under variations in one or more of externally supplied power and load conditions. An inrush protection circuit can also be provided to selectively introduce a current-limiting resistance until an input DC bus has been sufficiently initialized as determined by measurements obtained from the DC bus. The current limiting resistance can be a positive-temperature coefficient thermistor.
    • 使用本文所述的系统和技术可以实现向产生臭氧的电池供应高频电力的改进。 以大于负载频率的开关频率工作的DC-DC转换器的应用支持产生用于为这样的单元供电的高压AC,同时允许减小组件尺寸并降低负载调整电路的品质因数 。 可以使用反馈技术来控制用于获得开关和负载频率中的一个或多个的可控功率逆变器,以在一个或多个外部供电和负载条件的变化下向产生臭氧的电池提供稳定的高质量功率。 还可以提供浪涌保护电路以选择性地引入限流电阻,直到输入DC总线已被充分初始化为由从DC总线获得的测量结果所确定。 限流电阻可以是正温系数热敏电阻。
    • 30. 发明授权
    • System and method of providing services via a peer-to-peer-based next generation network
    • 通过基于对等的下一代网络提供服务的系统和方法
    • US08533327B2
    • 2013-09-10
    • US12062404
    • 2008-04-03
    • Li MoWeijun LeeLarry Shaoyan MaXing Chen
    • Li MoWeijun LeeLarry Shaoyan MaXing Chen
    • G06F15/16G06F15/173
    • H04L67/104H04L63/102H04L67/1093H04L67/14H04L67/306
    • A peer-to-peer network comprises a plurality of intelligent terminal nodes, each intelligent terminal node being operable to establish, maintain, and tear-down communication sessions with another intelligent terminal node, a plurality of network service nodes coupled to the plurality of intelligent terminal nodes, the plurality of network service nodes comprise at least one of the plurality of intelligent terminal nodes, at least one user P2P function module operable to store, locate and distribute service resource information related to user policies, and at least one network P2P function module operable to store, locate and distribute service resource information related to operator provider policies, and operable to exert stricter security control than the at least one user P2P function module.
    • 对等网络包括多个智能终端节点,每个智能终端节点可操作以建立,维护和拆除与另一智能终端节点的通信会话,耦合到多个智能终端节点的多个网络服务节点 所述多个网络服务节点包括所述多个智能终端节点中的至少一个,至少一个用户P2P功能模块,其可操作以存储,定位和分发与用户策略相关的服务资源信息,以及至少一个网络P2P功能 模块,其可操作以存储,定位和分发与运营商提供商策略相关的服务资源信息,并且可操作以施加比所述至少一个用户P2P功能模块更严格的安全控制。